[jboss-user] [EJB 3.0] - Re: EJB3 PersistanceManager confusion
lpiccoli
do-not-reply at jboss.com
Tue Oct 31 20:59:24 EST 2006
hi al,
can u explain the strategy us described reviously
anonymous wrote :
| 2) Don't specify the PK; dont set the ID
|
Given the ID in the debtor class is an int.
| public void setId(int id) {
| this.id = id;
| }
|
|
I have a question
1) The default value with be '0'. How does the entitymanager.merge differenciate between '0' default and a debtor.setId(0)?
I can see how it can identified as 'null' by using a Integer object instead of an int.
many thanks
-lp
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